A. Tammy

• Username: 4★epsilon_0
• Country:  United States
• Student/Professional:Student
• Institution:New York University
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 34

Current Ratings Graph Old Ratings Graph

1927 (+41)RatingProvisional
Rating i Provisional Rating, click to know more

February Cook-Off 2023 Division 2 (Rated)(2023-02-08 22:30:02)

Global Rank:   134

Cheated in:   

Ratings System Update

(2023-02-08 22:30:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

1886 (-142)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   468

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

None

Practice Paths (0)

None

Contests (34)

July Challenge 2013

The Probability Of Winning, Galactik Football, Count K-Primes, Chef and Walking on the rectangle

December Lunchtime 2013

Mike and Task Packages, Mike and Matrices

April Cook-Off 2014

Snape and Ladder

October Cook-Off 2014

The Army, Walk on the Axis

February Challenge 2014

Little Elephant and Subarrays, Colored Array, Longest Common Pattern, Chef and Favourite Sequence, Make Him Happy, Make It Zero, Draughts, Little Elephant and Movies

March Challenge 2014

Team Split, Binary Tournament, Walk, Maximum number, GCD condition, Little Chef and Numbers, Mike and Stamps

April Challenge 2014

Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Farmer Feb, Counting Matrices, Cards, bags and coins

May Challenge 2014

Chef-jumping, Stone

October Challenge 2014

Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Red Black Tree, Let us construct palindrome, Distinct Characters Subsequence, Chef and Segment Game

December Challenge 2014

Chef and Apple Trees

February Lunchtime 2014

Sereja and ASum, Sereja and Arrays

January Challenge 2015

Queries on the String, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

June Challenge 2015

Chef and Polygons, Chef and Memory Limit

April Challenge 2016

Help Watson Escape, Chef And Coloring, Chef And Magical Path, Fibonacci Queries, Chef and Ballons

September Challenge 2016

Chef and digits of a number, Faded Palindromes

October Challenge 2016

Chef and Keyboard, Chef and Three Dogs

November Challenge 2016

Count Permutations, Friends Meeting, Gift and Chef, Chef and squares, Task for Alexey

December Challenge 2016

Train Partner

March Lunchtime 2016

Simple Statistics

July Challenge 2017

Whats in the Name

July Cook-Off 2018 Division 2

Encoding Message, OR Matrix

April Challenge 2018 Division 2

Weight of Numbers, Workers

June Challenge 2018 Division 2

Naive Chef

July Challenge 2018 Division 2

No Strings Attached, Strike or Spare, Gears, No Minimum No Maximum, Reach Equilibrium, Magic Set

August Challenge 2018 Division 1

Coordinate Compression , Modular GCD

August Lunchtime 2018 Division 1

Chef and Eid, Mix Mix Game

February Challenge 2019 Division 1

Chef and Secret Ingredients, Art of Balance

April Challenge 2019 Division 1

Kira Loves Palindromes, Playing with Numbers, Subtree Removal

December Challenge 2019 Division 1

Chefina and Ranges, Addition, Sticky Notes, Binomial Fever, Binary XOR

July Challenge 2020 Division 1

Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus, Minimum Beauty

Total Problems Solved: 179